Home / 8,183.56-11,289.72-5,530

Finding the Fourth Proportional to 8,183.56, 11,289.72 and 5,530

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Solution

The fourth proportional to 8,183.56, 11,289.72 and 5,530 is: 7,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,183.56 : 11,289.72 = 5,530 : x
  2. Step 2: Convert to fraction form
    8,183.56/11,289.72 = 5,530/x
  3. Step 3: Cross multiply
    8,183.56x = 11,289.72 × 5,530
  4. Step 4: Simplify right side
    8,183.56x = 62,432,151.60
  5. Step 5: Solve for x
    x = 62,432,151.60/8,183.56
  6. Step 6: Final answer
    x = 7,628.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.